Welding device.



- J. I. GILLESPIB & A. GOLBERT WELDING DEVICE.

APPLIOATION FILED mac. 2e, 1911.

2 m m W M w w Q. W. D I d 1 m J G n LAM a P fllfl/fl W 4 Iillli 'lh l/ z m M 1 Z To allivhoifii't a mm; t I Be it known that we, James F. finmnsem;

and ARTHUR COLBERT, citlzensof the-Unid arms r. GILLESPIE AND ARTHUR COLBERT, or was momns, IOWA.

States, residing at Des Moines, con

Polk, and State of Iowa, have inyn certain new and 'useful lVeldin'g Devi which the following is a specification.

The object of our invention is to provide. I I a device of simple, durable-land inexpensive construction for welding together sections of pipe. v

,A further object is to provide such a device, whereby the endof one section of pipe may be flared outwardly and the end of another section of pipe contracted so that the end of the second section may be inserted in the end of the'first section for welding and to provide means whereby said ends may be easily and quickly welded together.

A further object is to provide a welding device havingadjustable means whereby the position of oneor two sections of pipe may be varied with-relation to the position of a hammer as desired, t

A further object-is to provide a welding device which leaves a smooth surface on the inside of the welded pipe.

A further object is to provide such a de-- vice which is adapted for use with an ordinary riveting machine;

Our invention consists in certain details, in the construction, arrangement and com bination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more'fully set forth, pointed out in our claims and illustrated in the accompanying drawings, in which:

Figure 1 ,sl1ows"a side elevation of an ordinary riveting machine with a welding device installed-thereon embodying our invention. Fig-'2 shows an end elevationof the same. 1* 'g. shows a detail view of our improved welding device showing theposition of a section of pipeinpositionfor flaring the end thereof. Fig. 4 shows -ai--detail, sectional view of a partof our'device showing asectionof pipe in position for cons tracting the end thereofi-and Fig. 5 shows a detail, sectional viewof a portion of our device showing the meansi for limiting the distance which the upper"'armf'of our device ma-yfbeinserted into a section ,of pipe.

thefaccompanying drawings,'- we have used; thejreiereiice numeral 10; to ndicate the base or supporting fram ofian ordinary riveting machine upon \Vhich i s-tl1e.striking" WELDING Dev ce; 1 t

Specification of Letters 15am. Patented Deg-.24, 1912. gpplic ation flied December 2 i e, 1911." Serial No, 561,992.

-: STATES PAFENTOFFIOE;

- arm 11. The rivetingmachine is of ordinary construction and we shall not 'further .Idescrihe it.

U-shaped-idevicehaving lower and upper 12' and 13, The free end of the lower H1 12 designedito be secured in any {to} the base 10. In the draws h t ac -mama: the bolts 11-. The free-end; he upper arm 13, is provided with a sm Ouiimproved welding device consists of hay shown-the arm-12 secured to.

cylindrical extension '15. The

end or the arm ,3, .at the point where the extensionqlti he its, forms a shoulder 16.

The free e lr-o- (the extension 15" is screw threaded andla nut :1'1 may be ,mounted on said screw threaded end. ,:..;Fr: flaring theend of a section-{of pipe, or for contracting w section we provide a man-'- h. s pr ovided;:with a central longitudinal ope ing.

The izrmandrel 1smounted on-the arm-13 by inserting the extension 15 into thejopening in said mandrel,

and is secured in position by screwing the nut 17 against the end of the mandrel. The outer surface of the mandrel 18 is tapered from its middle circumference toward either end, as clearly shown in'Fig, 4.

' ,W e provide a hammer of special construction forming part of our device comprising 4 a striking portion 19, the lower or striking surface of which is incurved from side t'o side to approximately fit a section of pipe.

Above the striking portion 19 is an exten sion 20 having a vertical, central opening designed to receive the striking arm 11 of the riveting machine. The extension 201s )rovided with a longitudinal slot 21 extending from its upper end to the bottom of the vertical. opening therein and from said vertical opening to the outer surfface of the extension 20. The extension 20"is provided with laterally extending fiange's'EZQ on each side of. the slot -21. In the flanges 22 are registering openings 23 in which is placed a bolt 24 on which is a nut 25. The hammer is secured to the striking farm 11 by inserting the end of said striking arm into the vertical opening in the extension 20 and by screwing the nut 25tightly on the b'oltQet,

thus drawing to ether the flanges 22. t

For use in wedding together two sect-ions of pipe after an end of onje'tsection has. been flared and an end ofthe other section has been contracted, we provide a mandrel 26 which is cylindrical inform and is provided to receive the extension For regulating the distance which the mandrel 18 may be inserted into the pipe, we provide a detachable bracket 27 which may be secured to the arm 12 by means of the bolt 28. The upper end of the bracket 27 is forked, as shown in Fig. 2, and the arms of the fork receive the'mandrel 1S and are in sufiicient proximity thereto to prevent the passing of the end of a section of pipe past said bracket 2? p When the hammer strikes on the free end of the arm 13, it is desirable to have that arm braced as firmly as possible. F or this purpose and also for limiting the distance which the arm 12-3 may be inserted into a 3i 3e we have n'ovided the followin means 2 l l a e.

A U-shaped brace 29 is designed to be in serted in the arm 12 with its sides extending upwardly and to receive between them the arm 13. Secured to the upper ends otthe arms of the brace 29 1s a cross piece 30 which detachable and may be mounted on the brace 29 in any suitable way. As shown in the drawings, the cross piece 30 is Slltiitbljf mounted on one of the arms of the brace 29 and is held thereon by means of a head 39* on said arnr The other end of the cross piece 30 is slidal'ily mounted on the other arm. of the brace 29, which arm is screw threaded at its end-L A nut 30 having ,a handle 30 is placed on said screw threaded end. Between the arms 12 and 13 and between the two sides or arms or" the brace 29 is a block 29*, the endsozt which may be slightly groovedto receive the sides or arms of the brace 29. The block 29 holds the arms 12 and 153 apartand supports the arm 13 during the operations of the hamm erQ The brace 29 and the block 29 maybe adjusted longitudinally on the arms 12"a'nd 13' so as to support the arm 13. W hen the ends of sections of pipe arebeing flared or contracted the brace 29 andblock 29 may be securednear the free ends of the arms 12 and 13. W hen the sections of pipe are being welded the brace Q) and the block-29 may be secured in proper positions to hold the pointef the weld over the mandrel.

In the practical operation of our improved welding device, we install the U- sh-aped device on a riveting machine by securing the arm 12 to the platform 10. lVe

then place the mandrel 3.8 on the extension 15 and secure it in position by means of the nut 17. The mandrel 18 is designed to turn or rotate freely on the extension 15 between the shoulder thereon and the nut 17. The

striking" arm 11 is inserted into the vertical opening in the extension 20 of the hammer and said extension is the striking arm 11 by tightly on the bolt flanges 22 together.

screwing the nut and draw ng the fastened securely on l 01 e se th me position for use tor to contractthe the end of the pipe the llsh isdesired to exp;

strikes the pipe shown in Fig.

with the contracted e age-tame the end of a section A bracket 27 is inserted i section of pipe can be pl 18 with its end tending past thereof, as shown in his. 4;. are designed to it in a slot 10 so that the arms 1, justed insuch a way asto to strike in'the middl of on either side of hen so adjusted that the h pipe section whi: i the reference numeral. 5' contracted inner er The end of the contracted ZlXOlU mandrel, as show tion of pipe the permit the end of placed on the in thereof, as show section is indicat The means of the I 0 right of the midd erated the end of the tapered end o; flared outwardly,

In welding together two we flare the end of the end of another section the mandrel 1S and pine ththe extension 15. The'sl is placed on the are pipe received within. other section, and proper position to h I which are to be welded mare The contracted "end or one inserted i the esipanded or ii the other ion; as shown i the pipe I ctions are indicated ence numerals 2-35 and 3,6, the ing (I. at they surrrn' i drel In prep rink; ing and in weldiii operated and the rotated causing 1 ference' of their ends to hammery It will. be u i. n ood ends Jot'the pipesection are h a proper degree for bending ar Whenthe pipe sections are and placed in the pos f and are rot onthe ed blow soil i re count le t on the inside of the welded pipe at the point of the weld, which ridge interferes.

smooth outer surface the inner surface of the pipe at the point of the weld is kept smooth.

Our'improved welding device has a number of advantages among which is the fact that it is adapted to be used with an ordinar riveting machine. The use of the mandre 18 with our U-shaped device enables us very rapidly and easily to flare and contract the ends of res ective pipe sections for welding them toget er. When sections of pi e are welded together by hand a ridge is with the cleaning of the pipes when they are used in boilers or the like. By "the use of our stantially U-shaped device, one end of which is designed to be adj'ustablysecured to a base, the other. end of which is provided with a shoulder a cylindrical longitudinal extension, screwthreaded at its end, a nut on said screwthreadedvend, and a mandrel rotatably mounted on said extension between said shoulder and said nut.

2. In a device of the class described, a substantially U-shaped device, means forv adjustably securing one end thereof to a base,

a shoulder on the other end thereof, a cylindrical portion extending from said shoulder in line with said last named end, a substantially, cylindrical portion, extending from said shoulder in line with said last named end, a substantially cylindrical mandrel rotatably mounted on said portion, and adjustable means (in said U-shaped device for limiting thedistancewhich said mandrel may beinserted into a-pipe. I p

3. In a device of the class described, a

substantially U.-shaped device having an upper and'a lower-arm whichstand in a vertical plane spaced; ,-fr'om each other, means for adjustablysecuring the lower arm to a support, means for mounting a mandrel on the upper armand means whereby said up per arm is supper drat a certain distance above said lower'5arin',which means is ad ju'stable longitudinallyon said U-shaped device and serves to limit the distance which.

the upper arm may be inserted into a pipe.

4. In a device of the class described, the

combination of a U-shaped device having one end designed to be secured to a base, a shoulder and a cylindrical extension on the other end of said device, a substantially cylindrical mandrel detachably mounted on said extension, and adjustable means on said U- shaped deviceforlimiting the distance said last namedend may be inserted into a pipe,

and means-adjustable longitudinally on said U-shaped device for holding the arms thereof at a fixed'distance from each other.

Des Moines,'I'oWa, October 26, 1911. JAMES F. GILLESPIE.

' ARTHUR COLBERT. Witnesses:

VINCENT HOGAN, MARY OBRIEN.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

